XPost: linux.debian.kernel

Control: tags -1 + confirmed upstream
Control: forwarded -1 https://lore.kernel.org/all/e0df2d85-1296-4317-b717-bd757e3ab928@heusel.eu/
Control: found -1 6.12.25-1
Control: found -1 6.14.3-1~exp1

Hi Sylvain,

On Thu, May 01, 2025 at 01:25:32PM +0200, Sylvain Beucler wrote:

Package: src:linux
X-Debbugs-Cc: beuc@beuc.net
Version: 6.1.135-1
Severity: normal

Dear Maintainer,

After updating the stable kernel, I can no longer use USB tethering
(wired connection sharing) with my Fairphone.

I found many similar recent reports: https://bugzilla.kernel.org/show_bug.cgi?id=220002 https://lore.kernel.org/all/e0df2d85-1296-4317-b717-bd757e3ab928@heusel.eu/ https://discussion.fedoraproject.org/t/fedora-42-tethering-from-my-phone-stopped-working-after-upgrade-device-recognized-as-wwan/148927/15
https://bugs.gentoo.org/953555 https://bbs.archlinux.org/viewtopic.php?id=304892
so posting here at Debian as well for tracking.

Apparently,
67d1a8956d2d ("rndis_host: Flag RNDIS modems as WWAN devices")
is the culprit.

Thanks for the report!

Just updating a bit the metadata of the bug along, which affects as
well the kernel aimed for trixie and later.

While the next stable series updates are missing the revert it should
already be on the way for 6.15-rc5 and might cherry-pick it in advance (depending what comes first to upload).

Regards,
Salvatore

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